Wrap With Inner Exception

Use a nested try/catch. Inner try: read n; if n < 0, throw new ArgumentException("negative value"); otherwise print Value: <n>. The inner catch wraps it: throw new InvalidOperationException("validation failed", ex), passing the original as the inner exception. The outer catch prints ex.Message, then prints Caused by: <ex.InnerException.Message>. Use top-level statements.

Input 5 prints: Value: 5
Input -2 prints:
validation failed
Caused by: negative value

Expected Output:

Value: 5

Topics:

Exceptions

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